Resolve callable reference expressions

#KT-1183 In Progress

compiler/testData/diagnostics/tests/callableReference/localNamedFunFromExtensionInLocalClass.kt

@@ -0,0 +1,19 @@
+class A
+
+fun main() {
+    fun foo() {}
+    fun bar(<!UNUSED_PARAMETER!>x<!>: Int) {}
+    fun baz() = "OK"
+    
+    class B {
+        fun A.ext() {
+            val x = ::foo
+            val y = ::bar
+            val z = ::baz
+
+            x : KFunction0<Unit>
+            y : KFunction1<Int, Unit>
+            z : KFunction0<String>
+        }
+    }
+}